Improvement in rotary churns



H. E. SMIT H.

ROTARY-CHURN.

Patented March 21,1876

Inventor. m a. fuzz Witnesses.

M 1 Ky N.PE|'E.RS FNOTO-UTHDGRAPHER. WASHINGTON D O.

. UNITED STATES PATENT OFFICE.

HAMILTON E. SMITH, OF NEW YORK, N. Y.

IMPROVEMENT IN ROTARY CHURNS.

Specification forming part of Letters Patent No. 175,187, dated March21, 1876; application filed September 15, 1875.

To all whom it may concern;

Be it known that I, HAMILTON E. SMITH, of the city, county, and State ofNew York, have invented a new and useful Improvement in Ohurns, whichimprovement is fully set forth in the following specification, referencebeing had to the accompanying drawing, in which- Figure 1 represents alongitudinal vertical section. Fig. 2 is a transverse vertical section.I V

Similar letters indicate corresponding parts.

This invention relates to certain improvements in churns, the objectbeing to provide for regulating and controlling the temperature of thecream in the same, during the operation of churning, in a convenient andefficient manner; and it consists in a hollow chamber, preferabl y of asquare or rectangular shape, with a flat bottom, in combination with thecreamtub, said chamber forming a tempering-chamber and base orsupportfor the cream-tub, as hereinafter more fully set forth.

In thc'drawing, the letter A represents the tub of the churn, and G ahollow base or tempering-chamber, upon which the churn is mounted, thelower portion of said tub projecting a short distance only into saidhollow base or tempering chamber, and seated so as to be immovablethereon. The tub and tempering-chamber are both made of metal, and thetub may be lined with porcelain, it desired. B represents a perforatedrotary dasher mounted upon gudgeons a ajournaled in the ends of the tub,one of which extends through its journal, and is provided with a crank,b,

by means of which a rotary motion is imparted to the dasher. Said dasherconsists of a blade of cast-iron, and may be enameled, if desired,

similarly to the inside of the tub. The hollow base 0 is provided withan aperture in its top just large enough to receive the lower portion ofthe tub A, and allow the convex portion'of its bottom to projecttherein, the tub being provided in the present example with feet for itssupport when seated or placed in position over the tempering-chamber.With in the tempering-chamber or base is arranged a lamp or series oflamps, or any other heating device, for heating the cream, so that thetemperature of the same may be regulated and controlled at pleasure, orwithin which a cooling material or device may be placed to reduce thetemperature in warm weather.

As thus constructed, the temperature of the cream can be regulated andcontrolled economically and efficiently, and, as only a portion of thetub is surrounded by the temperingchamber, there is little liability ofthe contents becoming overheated, as in the churns of this classentirely surrounded by a temperingchamber.

Having thus described my invention, what I claim, and desire to secureby Letters Patent. is

The hollow chamber 0, constructed with a flat base and an opening in itstop, in combination with the cream-tn) A, said hollow chamber forming atempering-chamber and a support or base for the cream-tub, substantiallyas described.

In testimony that I claim the foregoing I have hereunto set my hand andseal this 8th day of September, 1875.

HAMILTON E. SMITH.

Witnesses:

W. HAUFF, E. F. KASTENHUBER.

